Thought I would go ahead and start a thread on this. Hopefully, I can do a few things to it this weekend. Not sure what, as yet. I know the engine and transaxle need to come out. I may dig out the parts tractor to get ready for the transaxle swap. I need to get the clutch spring out of it for mybigwarwagon anyway. May be a month before I can get the engine swapped. Here's a few pics for those interested.

I will pull the mower deck to see what all it needs. Plus I can see what shape the lift is in. Plus I can see what differences there are between this deck and the green one I have.

I think something is bent! Gonna make a good tractor when you get done. So it's a belt to the trans? If so, then was it supposed to have twin belts to the trans?

Single belt to the trans, Daniel. That Hi/Lo transaxle is nice though! Could be a number of things on the wheel. I find out soon enough.Maynard, the Ag's go on the Ford. This will have the turfs off the Ford, 23 x 10.50's. Ag's will be filled with WW fluid.

If set up right a belt will pull a lot more than some will give credit for. My Lister Wheel Horse conversion was one belt and it destroyed the trans-axle without slipping. The next one will be driven the same way. My CC129 runs a skinny belt around two 90 deg. turns and the full length of the tractor to to drive the tiller. That tiller will push the whole tractor without slipping. Been doing it for two years and still looks good.
If I remember correctly my Craftsman GT18 is shaft drive with high and low range. They must have made a bunch of different versions of this thing?

If set up right a belt will pull a lot more than some will give credit for.

Oh that I know. My 620 Allis has twin 1/2" belts for the ground drive and they do not slip. But it needs twin belts, as she's a big tractor. My Bush Hog JBI that I put a TJD twin Wisconsin....I use twin 3/8" belts to drive the rear pto. I run a 53" tiller off it, and absolutely no belt slip.

Good luck Kenny, I may be pulling mine's Briggs tomorrow... in favor of a 13 Hp Honda clone I have sitting around (will require belt flip). I hope you can make headway on yours and can report high success rates.